private void DrawStuff()

        {

            //

            //if (buffer == null)

            //{

            //    buffer = new RenderTargetBitmap((int)Background.Width, (int)Background.Height, 96, 96, PixelFormats.Pbgra32);

            //    Background.Source = buffer;

            //    return;

            //}

            //using (DrawingContext drawingContext = drawingVisual.RenderOpen())

            //{

            //    drawingContext.DrawRectangle(new SolidColorBrush(Colors.Red), null, new Rect(0, 0, 10, 10));

            //}

            //buffer.Render(drawingVisual);

        }

        private void DrawImage() {

            //

            // layoutDocumentMapContainer

            //if (dockPanelMapContainer.ActualWidth <1 || dockPanelMapContainer.ActualHeight < 1 || this.Background == null)

            //{

            //    return;

            //}

            //using (Bitmap bitmap = new Bitmap((int)dockPanelMapContainer.ActualWidth, (int)dockPanelMapContainer.ActualHeight))

            //{

            //    this.Background.Visibility = Visibility.Visible;

            //    this.Background.Width = (double)bitmap.Width;

            //    this.Background.Height = (double)bitmap.Height;

            //    Graphics graphics = Graphics.FromImage(bitmap);

            //    graphics.FillRectangle(new System.Drawing.SolidBrush(System.Drawing.Color.Blue), new RectangleF(0, 0, (float)(dockPanelMapContainer.ActualWidth - 0), (float)(dockPanelMapContainer.ActualHeight - 0)));

            //    MemoryStream memoryStream = new MemoryStream();

            //    bitmap.Save(memoryStream, ImageFormat.Png);

            //    memoryStream.Position = 0L;

            //    BitmapImage bitmapImage = new BitmapImage();

            //    bitmapImage.BeginInit();

            //    bitmapImage.StreamSource = memoryStream;

            //    bitmapImage.EndInit();

            //    this.Background.Source = bitmapImage;

            //    graphics.Dispose();

            //    graphics = null;

            //}

        }